"Role-playing" doesnt have to be your usual level up exploration JRPG like lets say Final Fantasy, which is probably what you're talking about, but I am not sure you got the idea thats where I was going with this. Although I do think that Eternum bases itself on a story that you are, indeed, playing a RPG, and I pretty sure if Caribdis realistically create it as such, he would turn Eternum into a Bioware RPG.
What I mean was more the choice driven scenarios, consequences as such, a RPG like New Vegas if it were a AVN, so minus the technical gameplay parts, more the choice variables, and this case, as far the relationships go. Lets be honest, as of now its, like I've said, press A to be on a girl's path, press B if you dont care, which cuts the content by half and there's no consequence of going full harem right now, the Aphrodite club is the perfect example of why would you skip those scenes if (as far as I can tell), there's no blowback?